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Priority to JP10488379UpriorityCriticalpatent/JPS5816916Y2/ja
Priority to US06/173,907prioritypatent/US4349247A/en
Publication of JPS5623902UpublicationCriticalpatent/JPS5623902U/ja
Application grantedgrantedCritical
Publication of JPS5816916Y2publicationCriticalpatent/JPS5816916Y2/ja